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Xprint F.A.Q. Document revision 10 (16.09.2008)

Page 4/89

A. Xprint – Generalities

A.1 Backup Server

Xprint provides internally two features ensuring a basic high availability: the device group for the printing and the

replicated database mechanism for the product management.

The device group is an Xprint resource providing the possibility to associate a set of printing devices with a logical

name. The usage of this name as print job destination automatically requests Xprint to use the best fitting device

belonging to the list. Therefore, if the same physical printer is defined on several Xprint hosts, this printer will be

accessible as long as one of these Xprint hosts is running.

The following picture presents this feature: The printer is LAN connected and is defined on both Xprint hosts

"Host-B" and "Host-C". The device group name is "Printer1" and gathers the two devices "Printer1B" (printer

definition on Host-B) and "Printer1C" (printer definition on Host-C). By this way, a user or an application residing

on Host-A and using the destination name "Printer1" can access the physical printer as long as "Host-B" or "Host-

C" is running.

A.2 Compatibility of shell scripts that use Xprint commands

The variable XP_VR is offered to guarantee the compatibility of existing shell scripts with the current

Xprint version.

This variable defines the version number that is used when generating the display. The form of the display was

different in earlier versions of Xprint. Consequently, shell scripts or applications that use the output from an earlier

version may not be compatible with the current version.

XP_VR can have the following values: 04.2A00, 04.2B00, 05.0A00, 06.0A00 or 07.0A00. The format of the

installed version is used.

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